Finding the Fourth Proportional to 10,425.25, 14,386.98 and 5,709.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,425.25 : 14,386.98 = 5,709.43 : x
2. Step 2: Convert to fraction form
   10,425.25/14,386.98 = 5,709.43/x
3. Step 3: Cross multiply
   10,425.25x = 14,386.98 × 5,709.43
4. Step 4: Simplify right side
   10,425.25x = 82,141,455.22
5. Step 5: Solve for x
   x = 82,141,455.22/10,425.25
6. Step 6: Final answer
   x = 7,879.09